Dp got a call from his ex gf recently saying that she wants dss to start calling her dp (soon to be dh) 'daddy' and was asking if dp is ok with this. He isn't at all but agreed because he didn't feel like he really had any say in the matter as if dss/ex wants to do it they will just do it when he isn't around.
Aibu to this she is really U in asking this? I could understand her wanting this is dss was a baby and was going to grow up thinking of her dp as his dad, or if dp didn't see dss and so wasn't in the picture but that isn't the case at all. Dss is nearly 9, dp has dss every week, pays cms every single month and is very much a part of his life. Aibu in thinking this is out of order?